"The orange suit will work," says Rochell "Raquel" Greene, assisting a customer in her small Washington Avenue boutique. "The one in your hand ... not for you! Don't even bother trying it on." For three years Greene has been selling Brazilian bikinis and high-end Italian lingerie to the fashionably svelte denizens of South Beach. An expert on fit, Greene appraises the figure of every woman who walks in and steers them toward ensembles that best suit their body type. If a bikini fails to flatter, she refuses to sell it. "If someone leaves my store with a suit they don't feel comfortable wearing, they'll never come back. It makes business sense to make my customers happy." Such exceptional service allows her small shop (the entire place is no larger than a walk-in closet) to survive Washington Avenue's boom-and-bust economy. She discounts her designer underwear, but style comes at a price; a frugal customer could save money at Victoria's Secret, though that's a purchase Greene would lobby against. "Their stuff is garbage," she says with a sniff. "Garbage!"